Abstract: A memory storage module for storing and accessing information which includes a flat storage medium having an X-axis and a Y-axis. A plurality of read/write heads are coupled to a head array assembly which is capable of motion along the X-axis. The head array assembly positions the heads adjacent to the medium. An X-axis motor is coupled to the head array assembly and causes the heads to undergo reciprocating substantially linear motion along the X-axis of the medium. A Y-axis motor creates linear motion between the heads and the medium along the Y-axis of the medium. The heads are controlled to store or access information on the medium as the heads move across the X-axis of the medium. The Y-axis motor moves the heads from track to track along the Y-axis of the medium. The Y-axis motor can be connected to move either the medium or the head array assembly along the Y-axis.

Abstract: A memory storage module for storing and accessing information which includes a flat storage medium having an X-axis and a Y-axis. A plurality of read/write heads are coupled to a head array assembly which is capable of motion along the X-axis. The head array assembly positions the heads adjacent to the medium. An X-axis motor is coupled to the head array assembly and causes the heads to undergo reciprocating substantially linear motion along the X-axis of the medium. A Y-axis motor creates linear motion between the heads and the medium along the Y-axis of the medium. The heads are controlled to store or access information on the medium as the heads move across the X-axis of the medium. The Y-axis motor moves the heads from track to track along the Y-axis of the medium. The Y-axis motor can be connected to move either the medium or the head array assembly along the Y-axis.

Abstract: A memory storage module for storing and accessing information which includes a flat storage medium having an X-axis and a Y-axis. A plurality of read/write heads are coupled to a head array assembly which is capable of motion along the X-axis. The head array assembly positions the heads adjacent to the medium. An X-axis motor is coupled to the head array assembly and causes the heads to undergo reciprocating substantially linear motion along the X-axis of the medium. A Y-axis motor creates linear motion between the heads and the medium along the Y-axis of the medium. The heads are controlled to store or access information on the medium as the heads move across the X-axis of the medium. The Y-axis motor moves the heads from track to track along the Y-axis of the medium. The Y-axis motor can be connected to move either the medium or the head array assembly along the Y-axis.

Abstract: A serial line printer uses a linear stepper motor of the variable reluctance type in which the toothed stator bar acts as a guide and support for the print mechanism carrier. Sensor elements movable with the carrier sense the presence of the teeth of the stator bar and generate timing signals usable for controlling operation of the printer and the motion of the carrier. The pitch of the teeth in the stator bar is proportional to the spacing of the print locations in a line of print.

Abstract: A three phase rotary stepper motor of the variable reluctance type comprises a rotor and an annular stator having three pairs of diametrically opposed stator poles wound with bifilar windings. The stator windings are connected so that opposed poles are energized as a pair having the same polarity. The bifilar winding is connected so that pole pairs are energized with either polarity. A two phase energization scheme is used which causes adjacent poles of two pole pairs to have opposite polarity, while the third pole pair is magnetically neutral. Every three steps of the sequence the magnetically neutral pole pair is magnetized with the reverse polarity.